Indefatigable: sheet 53°N/02°E
Solid Geology, 1:250 000 series British Geological Survey and Geological Survey of The Netherlands.
Cameron, T.D.J., J. Bulat, N. Parker, P. Frantsen, C. Laban & R.T.E. Schüttenhelm, 1987
Solid Geology, 1:250 000 series British Geological Survey and Geological Survey of The Netherlands.
Cameron, T.D.J., J. Bulat, N. Parker, P. Frantsen, C. Laban & R.T.E. Schüttenhelm, 1987